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TITLE:
Quagga Multiple Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA46139

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46139/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46139

RELEASE DATE:
2011-09-29

DISCUSS ADVISORY:
http://secunia.com/advisories/46139/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46139/

ONLY AVAILABLE IN CUSTOMER AREA:
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 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=46139

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Multiple vulnerabilities have been reported in Quagga, which can be
exploited by malicious people to cause a DoS (Denial of Service).

1) An error in ospf6d when handling the length of IPv6 prefix
structures within Link State Update messages can be exploited to
crash the daemon and disrupt IPv6 routing.

2) An assertion error in ospf6d when processing Database Description
messages can be exploited to terminate the daemon and disrupt IPv6
routing.

3) An error in ospfd when processing Hello messages can be exploited
to crash the daemon and disrupt IPv4 routing.

4) An error in ospfd when processing Link State Advertisement (LSA)
types within Link State Update messages can be exploited to crash the
daemon and disrupt IPv4 routing.

5) An error in bgpd when handling AS_PATH attributes within UPDATE
messages can be exploited to cause a heap-based buffer overflow
resulting in a crash of the daemon and disruption of IPv4 routing.

The vulnerabilities are reported in versions prior to 0.99.19.

SOLUTION:
Update to version 0.99.19.

PROVIDED AND/OR DISCOVERED BY:
Riku Hietamäki, Tuomo Untinen, and Jukka Taimisto, Codenomicon CROSS
project via CERT-FI.

ORIGINAL ADVISORY:
Quagga:
http://www.quagga.net/download/quagga-0.99.19.changelog.txt

CERT-FI:
https://www.cert.fi/en/reports/2011/vulnerability539178.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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